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  2. 地质与地球物理研究所
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  4. 中国科学院页岩气与地质工程重点实验室
Effect of the crystal habit on micromechanical extensile behaviors of the crystalline rock during compression

文献类型：期刊论文

作者Huang, Xiaolin1,2; Qi, Shengwen1,2; Guo, Songfeng2; Zheng, Bowen2; Zhao, Qi3; Sha, Peng4; Wang, Tianzuo4; Yao, Xianglong5; Liang, Ning2; Chang, Jinyuan4
刊名ENGINEERING GEOLOGY
出版日期2022-12-05
卷号310页码:20
关键词Crystalline rock Crystal habit Microstructure Heterogeneity Micromechanical extensile behavior Microcracking
ISSN号0013-7952
DOI10.1016/j.enggeo.2022.106874
英文摘要The crystal habit controls the microstructure heterogeneity of the crystalline rock and significantly affects its mechanical behaviors. However, thus far, this effect has not been quantitatively characterized. Here we established a grain-based model to investigate effects of the crystal habit on compression-induced micromechanical extensile behaviors of the crystalline rock. Alteration of the grain morphology heterogeneity from the euhedral to anhedral was quantitatively depicted by the fractal dimension. Meanwhile, heterogeneity of grain-scale mechanical properties was also considered, which depended on the stress state. We identified two effects related to the crystal habit that affected mechanical behaviors of the crystalline rock: the tensile stress concentration effect (TSCE) and the grain boundary interlocking effect (ILE). These two effects counteracted with each other with modulating the crystal habit. The stress threshold of the crack initiation of the crystalline rock generally decreased as the crystal habit modulated from the euhedral to anhedral, while the stress thresholds of the crack damage and the peak stress first decreased and then increased. The crystal habit had important influences on the stress distributions and further affected the progressive failure characteristics of the crystalline rock. The intergranular cracking was throughout the whole process while the transgranular failure mainly emerged adjacent to the crack damage stage. With modulating the crystal habit from the euhedral to anhedral, the number of the transgranular failure zone first decreased then increased. We acquired new insights into the microcracking behaviors of the crystalline rock in which the transition to the anhedral microstructure could favor the transgranular failure.
WOS关键词GRAIN-BASED MODEL ; MICROSCALE HETEROGENEITY ; STATISTICAL TECHNIQUES ; MECHANICAL-BEHAVIOR ; ENERGY-DISSIPATION ; FRACTAL ANALYSIS ; FAILURE ; BRITTLE ; SIMULATION ; STRENGTH
资助项目Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; National Key Research and Development Plan of China[2019YFC1509701] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-201903402] ; National Natural Science Foundation of China[41825018] ; National Natural Science Foundation of China[41941018] ; National Natural Science Foundation of China[41902289] ; National Natural Science Foundation of China[41888101] ; Department of Education of Liaoning Province[QL 202012] ; Zhejiang Provincial Natural Science Foundation of China[LQ18D020001]
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:000874810900001
出版者ELSEVIER
资助机构Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Department of Education of Liaoning Province ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China ; Zhejiang Provincial Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/107741]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Huang, Xiaolin; Qi, Shengwen
作者单位1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Dept Civil Engn, Xianning West Rd 28, Xian 710049, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
3.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China
4.Shaoxing Univ, Key Lab Rock Mech & Geohazards Zhejiang Prov, Shaoxing 312000, Zhejiang, Peoples R China
5.China Three Gorges Corp, Inst Sci & Technol, Beijing 101100, Peoples R China
6.Dalian Ocean Univ, Coll Ocean & Civil Engn, Dalian 116024, Peoples R China
推荐引用方式
GB/T 7714		 Huang, Xiaolin,Qi, Shengwen,Guo, Songfeng,et al. Effect of the crystal habit on micromechanical extensile behaviors of the crystalline rock during compression[J]. ENGINEERING GEOLOGY,2022,310:20.
APA Huang, Xiaolin.,Qi, Shengwen.,Guo, Songfeng.,Zheng, Bowen.,Zhao, Qi.,...&Rong, Xiaoyang.(2022).Effect of the crystal habit on micromechanical extensile behaviors of the crystalline rock during compression.ENGINEERING GEOLOGY,310,20.
MLA Huang, Xiaolin,et al."Effect of the crystal habit on micromechanical extensile behaviors of the crystalline rock during compression".ENGINEERING GEOLOGY 310(2022):20.

入库方式： OAI收割

来源：地质与地球物理研究所

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